Bioactive glasses have attracted much attention both in the fields of materials and medicine, due to their excellent biocompatibility, bioactivity, osteoconductivity and controllable physiochemical properties. Up to now, they have been successfully used in clinic to repair bone defects and treat dental diseases. In this study, the composition and structure of bioactive glasses, mechanism of bioactivity, methodsto preparation and their applications was expounded, and an outlook of bioactive glasses was also given.

In this paper, we illustrated the teaching process that case teaching method applied to instrumental analysis course, such as the preparation of cases, case implementation and other aspects, and also put forward our own schemes.

In view of the characteristics of physical chemistry and the cognition of university students, we attempted to use the mind mapping method during the whole teaching procedures, including preview of the students, classroom teaching of the teacher, and summarizing after class. The new teaching method has been carried out many years, which is favorable to stimulate students' enthusiasm and develop students' innovative thinking and problem solving ability.

Four kinds of tools of expression can be used to express the molecular stereo-structure in the organic chemistry, such as wedge form, sawhorse perspective form, Newman projection and Fischer projection. The interchange between them is the basis of the whole molecular stereostructure. However, it is difficult for the beginners to understand and master these methods for the spacial imagination, which is one of the difficulties in organic chemistry teaching. This article showed the operative skills between the any two of the four stereoscopic representations, which could be good to figure out knowledge and solve practical problems.

Using phenylhydrazine and ethyl acetoacetate as the starting materials, a novel 1,5-benzothiazepine derivative was synthesized by six-step reactions. The intermediate and the target product were purified by recrystallization or silica gel column. Their structures were characterized by IR, MS and ¹H-NMR. Through this systematic training, the students can cultivate their comprehensive experimental ability, independent scientific research ability and comprehensive innovative ability.

In this paper, we designed a simple gas sensing experiment. Because of the coins contain kinds of metallic elements, it will form a layer of oxide on the surface of the coins after heating in air. The oxide could detect various gases based on its sensing mechanism. In the gas sensing experiment, hydrogen was generated according to the reaction between metal and acid solution, the resistance change of oxidized coin is proportion to the concentration of generated hydrogen. This is a experimental case close relate to the scientific principle and the sensing technology, which is favour for conducting students to study the gas sensor and scientific thinking.

Ethyl acetate is an important chemical raw materials. Ethyl acetate synthesis and hydrolysis reaction is a typical chemical production process. In 2014, our university introduced a set of ethyl acetate comprehensive training device, which is mainly used for practical training teaching of undergraduates in chemical engineering. This device includes two units, the synthesis and hydrolysis of ethyl acetate. Through the operation of the units, both practical ability and problem solving ability of students and teaching methods of teachers have been improved obviously. In the meantime, undergraduate practice teaching level have been promoted. Moreover, there are many problems during the experiment teaching, such as equipment pipeline corrosion, pump head corrosion and lack of buffer tank between units. The next step will be to reform these issues to achieve better training results.

Experiment teaching skill is an essential ability for pre-service chemistry teachers. Based on "structure-direction" teaching theory, this paper tried to construct an ideal psychological structure about experiment teaching for students, optimized micro-teaching training process and put forward some relevant suggestions.

The third generation mechanical manufacturing technology, represented by surface integrity manufacture, can effectively prolong the service life of key components, and is an essential factor in realizing "the Strategic Plan of Made-in China 2025". In response to the demand on strengthening engineering education in colleges and universities raised by the Ministry of Education, the experimental and teaching plan for engineering materials proposes, designed and implemented the solid carburizing experiment that was closely related to surface integrity manufacture by integrating the factors of traditional teaching and experimental platform of metal heat treatment. This experiment has been well-received among teachers and students because it not only enriched the teaching contents but also displayed remarkable knowledge forwardness and operational safety.

With the application of mobile public platform, the experiment teaching centre for chemistry in Capital Normal University developed a new teaching mode, aiming at the following achievements:(1) to develop a curriculum with dual structure of both traditional teaching and self-regulated learning, which help students with basic knowledge and skills as well as good autonomy before, within and after the experiments; (2) to conduct a stereoscopic teaching mode in which students are able to learn and communicate both in and out of the laboratories, either online or offline, without time and space constraints; (3) to apply several methods for the collection and analysis of the education data from different levels, which can be helpful for further education reform in experiment teaching.

In some current college books acetonitrile is thought to be miscible with water in any conditions. However, it is not always the case. With conducting critical learning in open teaching environments, the understanding of the solubility of acetonitrile in water was broadened. The homogeneous solution composed of acetonitrile and water can be caused phase separation by four specific experimental conditions, namely, sufficient amounts of salts added, sufficient amounts of monomeric carbohydrate or disaccharide added, hydrophobic solvent added, or being kept at sub-zero temperature. The upper layer formed in the phase separation is acetonitrile-rich phase, and the lower layer is water-rich phase. Four new liquid-liquid extraction methods based on the phase-separation phenomena mentioned above have been developed in recent years, namely salting-out acetonitrile-based extraction, sugaring-out acetonitrile-based extraction, subzero-temperature acetonitrile-based extraction, and solvent induced phase transition extraction. This teaching process not only introduced some new knowledges of acetonitrile properties, but also inspired the students to conduct critical learning.